[PATCH v6 00/17] RISC-V SiFive FU540 support SPL

[Pragnesh Patel]

This series add support for SPL to FU540.U-Boot SPL can boot from
L2 LIM (0x0800_0000) and jump to OpenSBI(FW_DYNAMIC firmware) and
U-Boot proper from MMC devices.

How to test this patch:
1) Go to OpenSBI-dir : make PLATFORM=sifive/fu540 O=build_dir I=install_dir FW_DYNAMIC=y install
2) cp install_dir/platform/sifive/fu540/firmware/fw_dynamic.bin <u-boot-dir>/
3) Change to u-boot-dir
4) make sifive_fu540_defconfig
5) make all
6) ZSBL loads the U-boot SPL(u-boot-spl.bin) from a partition with
   GUID type 5B193300-FC78-40CD-8002-E86C45580B47

   sudo dd if=spl/u-boot-spl.bin of=/dev/sdc4 bs=1M

7) U-boot SPL expects a u-boot FIT image(u-boot.itb) from 1st partition(/dev/sdc1)
   of SD card irrespective of GUID

   sudo dd if=u-boot.itb of=/dev/sdc1 bs=1M

Thanks to Yash Shah <yash.shah at sifive.com> for testing the series.

Changes in v6:
- Typo Correction
- Make fu540-c000-u-boot.dtsi and hifive-unleashed-a00-u-boot.dtsi
  Dual Licensed
- Sync Hifive unleashed dts from Linux
- Add arch/riscv/fu540 for FU540 specific code

Changes in v5:
- Return read/write bytes for sifive_otp_read and sifive_otp_write
- Correct Palmer's email address

Changes in v4:
- Split misc DM driver patch into multiple patches
- Added new SPL_CRC7_SUPPORT Kconfig option
- Added DM driver for DDR
- Added clk_enable and clk_disable ops in SiFive PRCI driver
- Added early clock initialization for SPL in SiFive PRCI driver
- Added SPL config options in sifive_fu540_defconfig instead of
  creatiing a new config file for SPL
- Update fu540.rst on how to build and flash U-boot SPL

Changes in v3:
- Remove arch-fu540 and arch-sifive from arch/riscv/include/asm/
- Split SPL patches into DDR and SPL and spl defconfig
- Update fu540/MAINTAINERS file
- Update fu540.rst on how to build and flash U-boot SPL

Changes in v2:
- Add DM driver Sifive OTP
- Split SPL patches into multiple patches
- Add a seprate patch for _image_binary_end and crc7.c
- Add a seprate patch to add board -u-boot.dtsi files
- Update FU540 RISC-V documentation


Pragnesh Patel (17):
  misc: add driver for the SiFive otp controller
  riscv: sifive: fu540: Use OTP DM driver for serial environment
    variable
  riscv: Add _image_binary_end for SPL
  lib: Makefile: build crc7.c when CONFIG_MMC_SPI
  riscv: sifive: dts: fu540: Add board -u-boot.dtsi files
  sifive: fu540: add ddr driver
  sifive: dts: fu540: Add DDR controller and phy register settings
  clk: sifive: fu540-prci: Add clock enable and disable ops
  clk: sifive: fu540-prci: Add clock initialization for SPL
  riscv: dts: sifive: Sync hifive-unleashed-a00 dts from linux
  sifive: dts: fu540: Enable gpio in U-Boot SPL
  riscv: sifive: fu540: add SPL configuration
  configs: fu540: Add config options for U-Boot SPL
  sifive: dts: fu540: Enable L2 Cache in U-Boot
  riscv: sifive: fu540: enable all cache ways from u-boot proper
  sifive: fix palmer's email address
  doc: update FU540 RISC-V documentation

 arch/riscv/Makefile                           |    1 +
 arch/riscv/cpu/u-boot-spl.lds                 |    1 +
 arch/riscv/dts/fu540-c000-u-boot.dtsi         |   79 +
 arch/riscv/dts/fu540-c000.dtsi                |   37 +-
 ...fu540-hifive-unleashed-a00-sdram-ddr4.dtsi | 1489 +++++++++++++++++
 .../dts/hifive-unleashed-a00-u-boot.dtsi      |   27 +
 arch/riscv/dts/hifive-unleashed-a00.dts       |    9 +
 arch/riscv/fu540/Makefile                     |   10 +
 arch/riscv/fu540/cache.c                      |   58 +
 arch/riscv/fu540/spl.c                        |   30 +
 arch/riscv/include/asm/arch-generic/cache.h   |   14 +
 arch/riscv/include/asm/arch-generic/gpio.h    |    3 +
 arch/riscv/include/asm/arch-generic/spl.h     |   14 +
 board/sifive/fu540/Kconfig                    |   10 +
 board/sifive/fu540/MAINTAINERS                |    2 +-
 board/sifive/fu540/Makefile                   |    4 +
 board/sifive/fu540/fu540.c                    |  143 +-
 board/sifive/fu540/spl.c                      |   72 +
 common/spl/Kconfig                            |    6 +
 configs/sifive_fu540_defconfig                |   11 +
 doc/board/sifive/fu540.rst                    |  409 ++++-
 drivers/clk/sifive/fu540-prci.c               |  218 ++-
 drivers/misc/Kconfig                          |    7 +
 drivers/misc/Makefile                         |    1 +
 drivers/misc/sifive-otp.c                     |  255 +++
 drivers/mmc/Kconfig                           |    1 +
 drivers/ram/Kconfig                           |    7 +
 drivers/ram/Makefile                          |    2 +
 drivers/ram/sifive/Kconfig                    |    8 +
 drivers/ram/sifive/Makefile                   |    6 +
 drivers/ram/sifive/sdram_fu540.c              |  399 +++++
 include/configs/sifive-fu540.h                |   18 +
 lib/Makefile                                  |    1 +
 33 files changed, 3241 insertions(+), 111 deletions(-)
 create mode 100644 arch/riscv/dts/fu540-c000-u-boot.dtsi
 create mode 100644 arch/riscv/dts/fu540-hifive-unleashed-a00-sdram-ddr4.dtsi
 create mode 100644 arch/riscv/dts/hifive-unleashed-a00-u-boot.dtsi
 create mode 100644 arch/riscv/fu540/Makefile
 create mode 100644 arch/riscv/fu540/cache.c
 create mode 100644 arch/riscv/fu540/spl.c
 create mode 100644 arch/riscv/include/asm/arch-generic/cache.h
 create mode 100644 arch/riscv/include/asm/arch-generic/spl.h
 create mode 100644 board/sifive/fu540/spl.c
 create mode 100644 drivers/misc/sifive-otp.c
 create mode 100644 drivers/ram/sifive/Kconfig
 create mode 100644 drivers/ram/sifive/Makefile
 create mode 100644 drivers/ram/sifive/sdram_fu540.c

-- 
2.17.1